北京大学数据结构与算法的讲义，包括二叉树、图、栈、队列、字符串等。很实用。-Data structures and algorithms, Peking University lecture notes, including the binary tree, graph, stacks, queues, strings, and so on. Very practical.

研究生计算机软件技术 数据结构与算法分析 课堂讲义ppt- Data structures and algorithm analysis (lecture notes ppt)